Title
Study of elementary excitations of superfluid <tex>$^{4}He$</tex> in silica aerogelsStudy of elementary excitations of superfluid <tex>$^{4}He$</tex> in silica aerogels
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Department of Physics
Publication type
article
Publication
Berlin,
Subject
Physics
Source (journal)
Zeitschrift für Physik : B : condensed matter. - Berlin
Zeitschrift für Physik: B: condensed matter and quanta. - Berlin
Volume/pages
95(1994):4, p. 511-514
ISSN
0722-3277
ISI
A1994PG39700014
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We have studied the elementary excitations of superfluid He-4 in a silica aerogel at 1.8 K and various filling fractions. The results do not show any departure from bulk He-4 behaviour, suggesting that previously observed anomalies in heat capacity and superfluid fraction data could be the effect of a distribution of He I and He II liquids inside pores of different sizes.
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